| Bishops Stortford Library | Children's non-fiction | C 590 | Available |
| Borehamwood Library | Children's non-fiction | C 590 | Available |
| Harpenden Library | Children's non-fiction | C 590 | Available |
| Hatfield Library | Children's non-fiction | C 590 | Available |
| Hemel Hempstead Library | Children's non-fiction | C 590 | Onloan - Due: 27 Jul 2025 |
| Hertford Library | Children's non-fiction | C 590 | Available |
| Hitchin Library | Children's non-fiction | C 590 | Available |
| Hoddesdon Library | Children's non-fiction | C 590 | Available |
| St Albans Library | Children's non-fiction | C 590 | Onloan - Due: 26 Jul 2025 |
| Stevenage Central Library | Children's non-fiction | C 590 | Available |
| Watford Central Library | Children's non-fiction | C 590 | Available |
| Welwyn Garden City Library and Information Service | Children's non-fiction | C 590 | Available |